<!doctype html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
</head>
<body>
	
</body>
<script type="text/javascript">
	jsobj={
		"username":"user1",
		"age":"20",
		"sex":"nan",
		"say":function(){
			alert(this.username)
		}
	};
	jsobj.say();
</script>
</html>